Magnetostrictive properties of Tb{sub 0.3}Dy{sub 0.7}(Fe{sub 1{minus}x}V{sub x}){sub 2} alloys
- National Tsing Hua Univ., Hsinchu (Taiwan, Province of China). Dept. of Materials Science and Engineering
Various amounts of vanadium were added into the polycrystalline Terfenol-D alloy, Tb{sub 0.3}Dy{sub 0.7}Fe{sub 2}, to investigate its effect on microstructure, hardness and magnetostrictive properties. The studied Tb{sub 0.3}Dy{sub 0.7}(Fe{sub 1{minus}x}V{sub x}){sub 2} alloys were prepared by arc-melting and homogenization. V was found to enter and replace Fe sublattices up to x = 0.2. As increasing V content, saturation magnetization and magnetostriction at 2 Tesla ({lambda}{sub 2T}) decrease slightly up to x = 0.1 and enormously at x = 0.2, while remanence and coercivity increase. Hardness of the x = 0.05 alloy (3.33 at% V) is the highest among the studied alloys. The {lambda}{sub 2T} value can be maintained at higher than 900 ppm for alloys with x {le} 0.1 (6.67 at% V). Porosity is high for the x {ge} 0.1 alloys.
- OSTI ID:
- 566460
- Report Number(s):
- CONF-970468--
- Journal Information:
- IEEE Transactions on Magnetics, Journal Name: IEEE Transactions on Magnetics Journal Issue: 5Pt2 Vol. 33; ISSN IEMGAQ; ISSN 0018-9464
- Country of Publication:
- United States
- Language:
- English
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